本文選題：輸油泵 + 故障診斷��； 參考：《青島科技大學(xué)》2015年碩士論文

【摘要】：輸油泵機(jī)組是原油傳輸過程中非常重要的設(shè)備,其特點(diǎn)是耗能特別高以及價(jià)格非常昂貴,輸油泵機(jī)組能否安全穩(wěn)定的運(yùn)行直接關(guān)系著整個(gè)石油生產(chǎn)加工行業(yè)能否安全穩(wěn)定的運(yùn)行,而且還直接影響著石油企業(yè)的經(jīng)濟(jì)效益。輸油泵機(jī)組在在長(zhǎng)期運(yùn)行的工程中難免會(huì)出現(xiàn)故障,一些比較常見的故障,比如輸油泵機(jī)組的軸承故障和轉(zhuǎn)軸故障,以及轉(zhuǎn)子的不平衡不對(duì)中所引起的故障。隨著石油化工產(chǎn)業(yè)的自動(dòng)化程度越來越高以及各個(gè)產(chǎn)業(yè)鏈的聯(lián)系越來越緊密,一旦在輸油過程中發(fā)生設(shè)備故障,就會(huì)嚴(yán)重威脅到石油加工相關(guān)產(chǎn)業(yè)鏈的正常運(yùn)轉(zhuǎn),因此會(huì)造成難以預(yù)料的損失。長(zhǎng)期以來石油運(yùn)輸企業(yè)一直以定期檢修的方式來對(duì)輸油泵機(jī)組進(jìn)行維護(hù)和保養(yǎng)。但是采用這種定期檢修的方法弊端很多,在定期檢修的過程中對(duì)輸油泵的停輸是不可避免的,而停輸輸油泵會(huì)造成重大的經(jīng)濟(jì)損失。因此在輸油泵日常運(yùn)行的過程中,采用現(xiàn)代化的監(jiān)測(cè)和檢測(cè)技術(shù)對(duì)輸油泵機(jī)組進(jìn)行故障診斷,從而及時(shí)有效的發(fā)現(xiàn)輸油泵機(jī)組運(yùn)行的潛在故障特征,避免輸油泵機(jī)組突發(fā)事故造成重大損失,這項(xiàng)工作對(duì)于石油儲(chǔ)運(yùn)行業(yè)就具有了非常重要的意義。本論文設(shè)計(jì)了一套安全、穩(wěn)定、成本低廉的輸油泵機(jī)組實(shí)時(shí)在線監(jiān)測(cè)和故障診斷系統(tǒng)。系統(tǒng)通過采用由壓電加速度傳感器、信號(hào)調(diào)理電路和STM32F4系列的單片機(jī)構(gòu)成的下位機(jī)系統(tǒng)實(shí)時(shí)的采集輸油泵機(jī)組的振動(dòng)數(shù)據(jù)進(jìn)行數(shù)字化處理和在線分析,并將采集和分析數(shù)據(jù)通過以太網(wǎng)及時(shí)傳輸?shù)接蒐abview開發(fā)的上位機(jī)軟件進(jìn)行顯示和存儲(chǔ)。本論文的工作重點(diǎn)主要是研究和設(shè)計(jì)輸油泵故障診斷系統(tǒng)的下位機(jī)振動(dòng)數(shù)據(jù)采集端的硬件電路系統(tǒng)、數(shù)據(jù)采集和處理部分的程序設(shè)計(jì)以及采用Labview開發(fā)輸油泵故障診斷系統(tǒng)上位機(jī)監(jiān)控軟件。通過采用自主設(shè)計(jì)的輸油泵振動(dòng)采樣和數(shù)據(jù)分析電路系統(tǒng)大大降低了系統(tǒng)的開發(fā)成本,并且提高了系統(tǒng)的可維護(hù)性。通過采用Labview開發(fā)上位機(jī)監(jiān)控軟件提高了上位機(jī)監(jiān)控軟件開發(fā)的效率,降低了開發(fā)難度和軟件維護(hù)的成本,方便了對(duì)故障數(shù)據(jù)的查詢和分析。通過使用該套系統(tǒng),實(shí)現(xiàn)了對(duì)輸油泵機(jī)組實(shí)時(shí)的狀態(tài)監(jiān)測(cè)和科學(xué)的故障分析,大大降低了對(duì)輸油泵機(jī)組的維護(hù)和保養(yǎng)成本,保證了輸油泵機(jī)組長(zhǎng)期穩(wěn)定、安全的運(yùn)行。
[Abstract]:The oil pump unit is a very important equipment in the course of crude oil transmission. It is characterized by extremely high energy consumption and very expensive prices. The safe and stable operation of the oil pump unit is directly related to the safe and stable operation of the whole petroleum production and processing industry, and also directly affects the economic benefits of the petroleum enterprises. It is inevitable that the oil pump unit will fail in the long run project, such as bearing fault and rotating shaft fault of the oil pump unit, and the fault caused by the misalignment of the rotor. With the increasingly high degree of automation of petrochemical industry and the closer and closer relationship between each industry chain, once the equipment failure occurs in the oil transportation process, it will seriously threaten the normal operation of the petroleum processing related industry chain. As a result, it can cause unpredictable losses. For a long time, oil transportation enterprises have been carrying out maintenance and maintenance of oil pump units by the way of regular maintenance. However, there are many drawbacks in adopting this method of periodic maintenance. It is inevitable to stop the transportation of oil pump in the process of periodic maintenance, and the shutdown of oil pump will cause great economic losses. Therefore, in the daily operation of oil pump, modern monitoring and detection technology is used to diagnose the fault of oil pump unit, so as to find the potential fault characteristics of oil pump unit in time and effectively. It is very important for oil storage and transportation industry to avoid serious loss caused by sudden accident of oil pump unit. In this paper, a set of real-time online monitoring and fault diagnosis system for oil pump unit is designed, which is safe, stable and low-cost. In this system, the vibration data of oil pump unit are collected in real time by using the lower computer system which is composed of piezoelectric accelerometer, signal conditioning circuit and STM32F4 series single chip microcomputer for digital processing and on-line analysis. The collected and analyzed data are transmitted to the host computer software developed by Labview to display and store the data in time through Ethernet. The main work of this paper is to study and design the hardware circuit system of the vibration data acquisition terminal of the lower computer of the oil pump fault diagnosis system. The program design of data acquisition and processing and the development of monitoring software of oil pump fault diagnosis system by Labview. By adopting the self-designed circuit system of vibration sampling and data analysis of oil pump, the development cost of the system is greatly reduced, and the maintainability of the system is improved. By using Labview to develop the monitoring software of upper computer, the efficiency of the software development is improved, the difficulty of development and the cost of software maintenance are reduced, and the query and analysis of fault data are facilitated. Through the use of the system, the real-time state monitoring and scientific fault analysis of the oil pump unit are realized, the maintenance and maintenance cost of the oil pump unit is greatly reduced, and the long-term stable and safe operation of the oil pump unit is ensured.
【學(xué)位授予單位】：青島科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE974

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